I am only going to make general comments that might have some bearing. I have a Pastor William Wiswall 1626-1670 that I know little about, except that I have him married to Mary Atwood (Wood) in about 1668 in Plymouth. Perhaps Thomas was his brother, as dates would work Then on April 27, 1970, in West Peabody, Essex County, Massachsetts Colony, I have Mary marrying Reverend John Holmes with children Mary, Joseph and Isaac. Her third husband was Maj. William Holmes, with children Israel, Ephraim, and Hezakiah.After John Holmes dies, I believe she was known as the widow Wiswall